Where does “東ローマ帝国” come from?
東ローマ帝国 (Japanese) comes from Japanese 東, from Old Japanese 東, from Old Japanese 天, from Proto-Japonic *amay.
東ローマ帝国 (Japanese): the Eastern Roman Empire
Ancestry of “東ローマ帝国”, step by step
東ローマ帝国 traces back through two separate lines of ancestry.
via Japanese 東
| Step | Language | Word | Meaning |
|---|
| 1 | Japanese | 東 | the east; the Orient; an easterly |
| 2 | Old Japanese | 東 | the east; the lands east of the 都 |
| 3 | Old Japanese | 天 | sky, heavens |
| 4 | Proto-Japonic | *amay | — |
via Japanese ローマ帝国
| Step | Language | Word | Meaning |
|---|
| 1 | Japanese | ローマ帝国 | — |
| 2 | Japanese | ローマ | Rome, Roman |
| 3 | Italian | Roma | Rome |
| 4 | Latin | Rōma | Rome and/or Constantinople (the latter as "Nova Roma") |